Typo's

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@893 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

appendixa/flex-desc.xml

@@ -7,10 +7,10 @@
 
 <sect2><title>Description</title>
 
-<para>Flex is a tool for generating programs which recognizes patterns in text. 
+<para>Flex is a tool for generating programs which recognize patterns in text. 
 Pattern recognition is very useful in many applications. A user sets up rules 
 what to look for and flex will make a program that looks for those
-patterns. The reason people use flex is that it is much easier to set up 
+patterns. The reason people use flex is that it is much easier to sets up 
 rules for what to look for than to write the actual program that finds 
 the text.</para>